how to plot a quadrangle

Hi everybody does anyone know how I can plot a quadrangle with four set points of (x,y) like : (0.4464,0.4234), (0.4180,0.4116), (0.4046,0.3774), (0.4289,0.3871) ? Thanks !

Answer 1

[Roger Stafford]

If the four (x,y) points are vectors P1, P2, P3, and P4,

plot([P1(1),P2(1),P3(1),P4(1),P1(1)],[P1(2),P2(2),P3(2),P4(2),P1(2),’y-‘)

will draw the corresponding rectangle (provided the points are in the proper perimeter order.)